Vehicle body seat guide rail mounting hole precision detection tool

Abstract

The utility model relates to the field of automobile auxiliary manufacturing, in particular to an automobile body seat guide rail mounting hole precision detection tool, which comprises a base, a detection part and a reference part, the detection part is positioned on the bottom surface of the base and is fixedly connected with the base, and the reference part is positioned on the top surface of the base and is fixedly connected with the base. The reference part comprises a plurality of measurement reference blocks, each measurement reference block is provided with a reference hole and a reference surface, the detection part further comprises a positioning piece and a detection piece, the detection supporting block and the positioning supporting block are provided with a detection hole and a positioning hole, and the positioning piece and the detection piece are inserted into the positioning hole and the detection hole respectively; according to the utility model, the precision detection and calibration of the tool can be carried out without using a complex comprehensive detection tool, and the production and maintenance cost of a workshop is reduced.

Description

Technical Field

[0001] The utility model relates to the field of automobile auxiliary manufacturing, in particular to a tool for detecting the accuracy of mounting holes of vehicle body seat guide rails. Background Art

[0002] Currently, most medium and large car models on the market are equipped with aviation seats and zero-gravity seats in the second row. The seats can change the distance from the front seats by moving forward and backward, so that the second row seats can change from sitting to semi-reclining and fully reclining, which greatly improves the utilization rate of the space in the car. The seat comfort is diversified. In order to achieve the forward and backward movement of the seats, the seat base needs to be installed on two parallel guide rails, and the guide rails are fixed to the floor with screws. When the guide rails are misaligned front and back, the distance the seat moves forward and backward will not meet the design standards. When fully reclining, the seat may interfere with other parts. If the two guide rails are not parallel enough, the seat rollers will interfere with the guide rails, causing abnormal noise and jamming. That is, the assembly accuracy of the guide rails has an important influence on the seat displacement function and the comfort of the seat. Therefore, the installation of the car's seat rails requires guide rail assembly and detection tooling with higher positioning accuracy to measure whether the installation of the rails meets the standards.

[0003] The prior art discloses a seat mounting hole position detection tool, comprising two detection rods connected by a crossbar. The front ends of the two detection rods are each provided with a downwardly inclined support head, each provided with a front detection hole. Positioning pins are connected to the two detection rods near the support heads. The rear end of one detection rod is provided with a rear detection hole, and the rear end of the other detection rod is connected to a detection block, with lateral detection holes provided on the sides of the detection block. When the tool is in use, the positioning pins are inserted into the vehicle body for positioning. The front, rear, and lateral detection holes are then checked to see if they are aligned with the seat mounting holes. If they are aligned, the seat can be assembled. If not, the seat mounting holes are first corrected and aligned before the seat assembly is performed.

[0004] However, as a tool requiring high precision, the above-mentioned existing inspection tooling may deviate in accuracy if used for a long time or improperly. The accuracy of the tooling needs to be calibrated regularly to ensure the accuracy of the tooling. The accuracy verification of this tooling itself requires the purchase of expensive comprehensive inspection tools to calibrate the accuracy of the tooling, which increases the production and maintenance costs of the workshop. Utility Model Content

[0005] The purpose of this utility model is to overcome the problem of high workshop production and maintenance costs for the existing seat mounting hole position detection tooling accuracy calibration, and to provide a vehicle body seat guide rail mounting hole accuracy detection tooling that does not require the use of complex comprehensive inspection tools to perform accuracy detection and calibration of the tooling itself, thereby reducing the production and maintenance costs of the workshop.

[0006] In order to achieve the above purpose, the technical solution adopted by the present utility model is as follows:

[0007] A vehicle body seat rail mounting hole accuracy detection tool includes a base and a detection part, wherein the detection part is located on the bottom surface of the base and is fixedly connected to the base; and also includes a reference part, which is located on the top surface of the base and is fixedly connected to the base.

[0008] In the above technical solution, the entire tooling is first placed on the standard horizontal floor of the workshop so that the entire base remains horizontal, and the tooling is calibrated using a portable precision measuring instrument. The instrument probe of the portable precision measuring instrument is aligned with the reference part, thereby performing point measurement on the reference part, and the obtained coordinates are set as standard coordinates. The instrument probe of the portable precision measuring instrument is then aligned with the detection position of the detection part, and point measurement of the detection part is continued to be performed to obtain the relative coordinates of the detection part when the coordinates of the reference part are the standard coordinates. The relative coordinates of the detection part are compared with the standard data to determine whether the position accuracy of the detection part meets the requirements. By setting the reference part and measuring the coordinates of the reference part as the standard coordinates, there is no need to use complex comprehensive inspection tools to perform precision inspection and calibration of the tooling itself, thereby reducing the production and maintenance costs of the workshop.

[0009] Furthermore, the reference portion includes several measuring reference blocks, which are located on opposite sides of the top surface of the base and are evenly arranged along the length direction. The measuring reference blocks are provided with reference holes and reference surfaces. The measuring reference blocks are rectangular blocks with high straightness and flatness. The reference holes and reference surfaces of the measuring reference blocks are calibrated using an instrument probe to obtain more accurate standard coordinates.

[0010] Furthermore, at least three measuring reference blocks are arranged on one side of the base, and the measuring reference blocks are all located between the two ends of the base or at least two measuring reference blocks are respectively located at the two ends of the base; at least three measuring reference blocks are evenly arranged on both sides of the base, which can obtain accurate standard point data to calculate the standard plane and avoid the standard plane from being skewed. The even arrangement of the measuring reference blocks can facilitate the operator to more intuitively observe and judge the correctness of the measured standard coordinate data to avoid measurement errors caused by the operator's own operational errors.

[0011] Furthermore, the reference part also includes a rubber plug, which is inserted into the reference hole and is used to protect the reference hole and the reference surface; the reference hole and the reference surface have high precision and high manufacturing cost. In order to avoid damage or wear due to operational errors when they are idle or disassembled, a rubber plug should be provided to protect them.

[0012] Furthermore, the detection part includes several detection brackets and several positioning brackets, the positions and numbers of the detection brackets at the bottom of the base correspond to the guide rail mounting holes, and the positioning brackets are located at positions adjacent to the detection bracket or another positioning bracket along the length direction of the tooling; each guide rail mounting hole needs to be inspected to ensure the parallelism of the guide rail after installation, and the positioning brackets are arranged at positions adjacent to the detection brackets to facilitate more accurate positioning of the detection brackets; the two positioning brackets are adjacent to each other for different types of seat guide rail mounting hole positioning positions to ensure the same positioning accuracy.

[0013] Furthermore, the detection part also includes a pad, which is connected to the base, and the detection support block and the positioning support block are both installed on the bottom surface of the pad; the pad is made of softer cast iron or manganese alloy material with good wear resistance. On the one hand, it avoids wear caused by mutual friction between the detection support block or the positioning block and the bottom surface of the base, and on the other hand, it can compensate for the gap or irregularity between the base and the detection part.

[0014] Furthermore, the detection support block and the positioning support block are both fixedly connected to the base by threads.

[0015] Furthermore, the detection part also includes a positioning piece and a detection piece, and the detection support block and the positioning support block are provided with a detection hole and a positioning hole, and the positioning piece and the detection piece are respectively inserted into the positioning hole and the detection hole; the positioning piece is inserted into the positioning hole to position and engage the tooling with the floor, and the detection piece is inserted into the detection hole to determine whether the guide rail mounting hole is offset by verifying the smoothness of the insertion and whether it can be inserted into the bottom position.

[0016] Furthermore, the detection part also includes a marking pin that can be inserted into the detection hole; the pin head of the marking pin is sharp and can scratch on the bottom plate of the vehicle body. When the guide rail mounting hole is offset, the marking pin is used to scratch a circular scratch near the guide rail mounting hole. With the mounting hole as the center, the distance between the hole and the scratch is visually inspected to determine the deviation direction of the hole, providing a standard for problem point analysis and internal fixture debugging.

[0017] Furthermore, it also includes a plurality of handles, which are fixedly connected to the top surface of the base; the provision of the handles facilitates tooling progress verification or movement and installation during use.

[0018] Beneficial effects of the utility model:

[0019] 1. Install the datum part on the base of the tooling. Engineers only need to use a portable precision measuring instrument to perform touch measurement on the datum part to obtain the standard coordinate data. There is no need to use complex comprehensive inspection tools to perform precision inspection and calibration of the tooling itself, which reduces the production and maintenance costs of the workshop. At the same time, the easy operation also greatly reduces the training costs of personnel, ultimately reducing the production and maintenance costs of the workshop.

[0020] 2. A pad is set on the detection part to effectively compensate for the gap or irregularity between the compensation base and the detection part, and at the same time prevent the crush failure between the detection support block and the positioning support block and the base threaded connection. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Figure 1 This is a structural diagram of a tool for detecting the accuracy of the mounting holes of the seat rails of a vehicle body;

[0022] Figure 2 It is a structural diagram of the test piece;

[0023] Figure 3 It is a structural diagram of the positioning member;

[0024] Figure 4 Schematic diagram of the structure of the marking pin.

[0025] In the drawings: base 1; detection part 2; reference part 3; measurement reference block 301; reference hole 3012; reference surface 3011; rubber plug 302; detection support block 201; positioning support block 202; pad 203; positioning member 204; detection member 205; marking pin 206; handle 4. DETAILED DESCRIPTION

[0026] The following describes the embodiments of the present invention with reference to the accompanying drawings and preferred embodiments. Those skilled in the art will readily understand the other advantages and benefits of the present invention from the disclosure herein. The present invention may also be implemented or applied through various other specific embodiments, and the details in this specification may be modified or altered based on different perspectives and applications without departing from the spirit of the present invention. It should be understood that the preferred embodiments are intended solely to illustrate the present invention and are not intended to limit the scope of protection of the present invention.

[0027] Example 1

[0028] This embodiment is the first embodiment of a vehicle seat rail mounting hole precision detection tool. Figure 1 As shown, it includes a base 1 and a detection part 2, the detection part 2 is located on the bottom surface of the base 1 and is fixedly connected to the base 1, and also includes a reference part 3, the reference part 3 is located on the top surface of the base 1 and is fixedly connected to the base 1.

[0029] Among them, the specific structure of the base 1 is two relatively arranged long side members and two relatively arranged short side members. The two long side members and the two short side members form a rectangular frame. Inside the frame, there are also multiple reinforcement members connecting the two long side members evenly arranged. Among them, the long side members, short side members and reinforcement members are all rod-shaped.

[0030] Specifically, the reference portion 3 includes a plurality of measurement reference blocks 301, which are located on opposite sides of the top surface of the base 1 and are evenly arranged along the length direction. The measurement reference blocks 301 are provided with reference holes 3012 and reference surfaces 3011. The measurement reference blocks 301 are rectangular parallelepipeds with high straightness and flatness. The reference holes 3012 and reference surfaces 3011 of the measurement reference blocks 301 are calibrated using an instrument probe to obtain relatively accurate standard coordinates. In this embodiment, the measurement reference blocks 301 are provided on the long side pieces.

[0031] Specifically, at least three measuring reference blocks 301 are set on one side of the base 1, and the measuring reference blocks 301 are all located between the two ends of the base 1 or at least two measuring reference blocks 301 are respectively located at the two ends of the base 1; at least three measuring reference blocks 301 are evenly arranged on both sides of the base 1, which can obtain accurate standard point data to calculate the standard plane and avoid the standard plane from being skewed. The even arrangement of the measuring reference blocks 301 can facilitate the operator to more intuitively observe and judge the correctness of the measured standard coordinate data to avoid measurement errors caused by the operator's own operating errors.

[0032] There are three measurement reference blocks 301 , and three measurement reference blocks 301 are provided on one long side piece, two of which are located at the ends of the long side piece, and the third is located in the center of the long side piece.

[0033] Specifically, the reference part 3 also includes a plug 302, which is inserted into the reference hole 3012. The plug 302 is used to protect the reference hole 3012 and the reference surface 3011; the reference hole 3012 and the reference surface 3011 have high precision and high manufacturing cost. In order to avoid damage or wear due to operational errors when they are idle or disassembled, a plug 302 should be provided to protect them.

[0034] Specifically, it also includes a plurality of handles 4, which are fixedly connected to the top surface of the base 1; the arrangement of the handles 4 facilitates tooling progress verification or movement and installation during use.

[0035] During the operation of the above embodiment, the base 1 is first moved to the standard horizontal floor of the three-dimensional coordinate measurement room by the handle 4, and the instrument probe of the portable precision measuring instrument is aligned with the reference surface 3011 of a measuring reference block 301 of the reference part 3 to obtain the first coordinate data point. Then, the reference surface 3011 of the second measuring reference block 301 is measured by the same operation to obtain a one-dimensional standard coordinate data point. Then, the third measuring reference block 301 which is not on the same straight line as the first two measuring reference blocks 301 is measured to obtain a two-dimensional standard coordinate data point. Finally, the probe is inserted into any two reference holes 3012 to obtain the three-dimensional standard coordinate data point and the portable precision measuring instrument is used to assemble the standard coordinates according to these standard data points. Then, the rubber plug 302 is inserted into the reference hole 3012 to protect the reference part 3, and then the accuracy of the detection part 2 is calibrated. If the accuracy of the detection part 2 deviates, the detection part 2 needs to be disassembled, re-debugged, positioned and fixed.

[0036] The beneficial effects of this embodiment are as follows: the reference part 3 is installed on the base 1 of the tooling, and the engineer only needs to use a portable precision measuring instrument to directly perform touch measurement on the reference part 3 to obtain the data of the standard coordinates. There is no need to use complex comprehensive inspection tools to perform precision inspection and calibration of the tooling itself, thereby reducing the production and maintenance costs of the workshop. At the same time, the operation is simple, which greatly reduces the training costs for personnel, and ultimately reduces the production and maintenance costs of the workshop. At the same time, after the calibration is completed, the rubber plug 302 is used to cover the measuring reference block 301 to effectively protect it from wear and tear, thereby increasing its service life.

[0037] Example 2

[0038] This embodiment is the second embodiment of a vehicle seat rail mounting hole precision detection tool. Figures 1 to 3 As shown, it includes a base 1 and a detection part 2, the detection part 2 is located near the edge of the bottom surface of the base 1 and is fixedly connected to the base 1, and also includes a reference part 3, the reference part 3 is located on the top surface of the base 1 and is fixedly connected to the base 1.

[0039] Specifically, the detection part 2 includes several detection brackets 201 and several positioning brackets 202. The positions and numbers of the detection brackets 201 at the bottom of the base 1 correspond to the guide rail mounting holes. The positioning brackets 202 are located adjacent to the detection bracket 201 or another positioning bracket 202 along the length direction of the tooling; each guide rail mounting hole needs to be inspected to ensure the parallelism of the guide rail after installation. The positioning bracket 202 is set adjacent to the detection bracket 201 to facilitate more accurate positioning of the detection bracket 201; the two positioning brackets are adjacent to each other for different types of seat guide rail mounting hole positioning positions to ensure the same positioning accuracy.

[0040] Specifically, the detection part 2 also includes a pad 203, which is connected to the base 1, and the detection support block 201 and the positioning support block 202 are both installed on the bottom surface of the pad 203; the pad 203 is made of softer cast iron or manganese alloy material with good wear resistance. On the one hand, it avoids wear caused by mutual friction between the detection support block 201 or the positioning support block and the bottom surface of the base 1, and on the other hand, it can compensate for the gap or irregularity between the base 1 and the detection part 2.

[0041] The positioning bracket 202 is located adjacent to the detection bracket 201 or another positioning bracket 202 along the length direction. "Adjacent" means that the distance between the detection bracket 201 and the positioning bracket 202 along the length direction is between one and two times their own length.

[0042] Specifically, the detection support block 201 and the positioning support block 202 are both fixedly connected to the base 1 by threads.

[0043] Specifically, the detection part 2 also includes a positioning member 204 and a detection member 205. The detection support block 201 and the positioning support block 202 are provided with a detection hole and a positioning hole. The positioning member 204 and the detection member 205 are respectively inserted into the positioning hole and the detection hole; the positioning member 204 is inserted into the positioning hole to position the tooling and the floor, and the detection member 205 is inserted into the detection hole. By verifying the smoothness of the insertion and whether it can be inserted into the bottom position, it is determined whether the guide rail mounting hole is offset.

[0044] Among them, the detection part 205 and the positioning part 204 can also be set in multiple types to suit different types of seat guide rail mounting holes, such as setting an A-type detection part 205 and an A-type positioning part 204. At the same time, a B-type detection part 205 and a B-type positioning part 204 can also be set on the same base 1, and corresponding positioning support blocks 202 and detection support blocks 201 corresponding to the positioning parts 204 and the detection parts 205 are also installed. Type A is used for positioning and detection on general guide rail mounting holes, and Type B is used for positioning and detection on other guide rail mounting holes, such as LH or RH detection.

[0045] Specifically, it also includes a plurality of handles 4, which are fixedly connected to the top surface of the base 1; the arrangement of the handles 4 facilitates tooling progress verification or movement and installation during use.

[0046] During the working process of the above embodiment, the detection member 205 and the positioning member 204 are both pin-shaped members. First, the detection part 2 is calibrated for accuracy. The entire tool is placed on the standard horizontal floor of the workshop to keep the entire base 1 horizontal. The tool is calibrated using a portable precision measuring instrument. The instrument probe of the portable precision measuring instrument is aligned with the reference part 3, thereby performing point measurement on the reference part 3. The obtained coordinates are set as standard coordinates. The instrument probe of the portable precision measuring instrument is then aligned with the detection position of the detection part 2, and point measurement of the detection part 2 is continued to obtain the coordinates at the reference part. 3 coordinates are the relative coordinates of the detection part 2 under the standard coordinates. The relative coordinates of the detection part 2 are compared with the standard data for determination. If the deviation of the detection part 2 is within a reasonable error range, the base 1 is moved to the vehicle body floor through the handle 4, and the positioning member 204 is first inserted into the positioning hole and contacted with the positioning point of the vehicle body floor to achieve positioning. The detection member 205 is then inserted into the detection hole, passed through the detection hole, and penetrated into the guide rail mounting hole of the vehicle body floor, and slid back and forth multiple times. By judging the smoothness of the detection member 205 sliding in and out of the detection hole and the guide rail mounting hole, it is judged whether the position of the guide rail mounting hole is accurate.

[0047] Beneficial effects of this embodiment: a pad 203 is provided between the detection support block 201, the positioning support block 202 and the base 1, which can ensure sufficient installation accuracy; when performing accuracy detection on the guide rail mounting hole, the positioning piece 204 and the positioning hole can enable the operator to quickly find the corresponding position on the vehicle body floor and install it; the detection piece 205 and the detection hole can intuitively feedback the accuracy through the tactile feel of the smoothness of sliding in and out, so that the operator can quickly identify the accuracy of the mounting hole.

[0048] Example 3

[0049] This embodiment is the second embodiment of a vehicle seat rail mounting hole precision detection tool. Figures 1 to 4 As shown, it includes a base 1 and a detection part 2, the detection part 2 is located near the edge of the bottom surface of the base 1 and is fixedly connected to the base 1, and also includes a reference part 3, the reference part 3 is located on the top surface of the base 1 and is fixedly connected to the base 1.

[0050] Specifically, the detection part 2 also includes a positioning member 204 and a detection member 205. The detection support block 201 and the positioning support block 202 are provided with a detection hole and a positioning hole, and the positioning member 204 and the detection member 205 are respectively inserted into the positioning hole and the detection hole; the positioning member 204 is inserted into the positioning hole to position the tooling and the floor, and the detection member 205 is inserted into the detection hole. By verifying the smoothness of the insertion and whether it can be inserted into the bottom position, it is determined whether the guide rail mounting hole is offset.

[0051] Specifically, the detection part 2 also includes a marking pin 206 that can be inserted into the detection hole; the pin head of the marking pin 206 is sharp and can scratch on the bottom plate of the vehicle body. When the guide rail mounting hole is offset, the marking pin 206 is used to scratch a circular scratch near the guide rail mounting hole. With the mounting hole as the center, the distance between the hole and the scratch is visually inspected to determine the deviation direction of the hole, providing a standard for problem point analysis and internal fixture debugging.

[0052] The sharp portion of the marking pin 206 is on the circumference of the pin head.

[0053] During the operation of the above embodiment, when the detection piece 205 is inserted into the detection hole and it is found that the position of the vehicle body floor guide rail mounting hole is deviated, the detection piece 205 is taken out and the marking pin 206 is inserted, and the marking pin 206 is rotated 360 degrees in the detection hole until a corresponding scratch appears on the vehicle body floor, and finally analysis and debugging are performed based on the scratch.

[0054] The beneficial effects of this embodiment are as follows: scratching with the marking pin 206 can quickly identify the accuracy deviation of the guide rail mounting hole, monitor the accuracy change, improve work efficiency, and optimize measurement time.

[0055] The above embodiments are only preferred embodiments for fully illustrating the present invention, and the protection scope of the present invention is not limited thereto. Any equivalent substitution or modification made by those skilled in the art based on the present invention shall fall within the protection scope of the present invention.

Claims

1. A vehicle seat guide rail mounting hole accuracy detection tool, comprising a base (1) and a detection part (2), wherein the detection part (2) is located on the bottom surface of the base (1) and is fixedly connected to the base (1), and is characterized in that: The invention also comprises a reference portion (3), the reference portion (3) being located on the top surface of the base (1) and being fixedly connected to the base (1); the reference portion (3) comprising a plurality of measuring reference blocks (301), the measuring reference blocks (301) being located on opposite sides of the top surface of the base (1) and being evenly arranged along the length direction, the measuring reference blocks (301) being provided with reference holes (3012) and reference surfaces (3011); the detection portion (2) comprising a plurality of detection support blocks (201) and a plurality of positioning support blocks (202), the positions and numbers of the detection support blocks (201) at the bottom of the base (1) both corresponding to the guide rail mounting holes, the positioning support blocks (202) being located at positions adjacent to the detection support block (201) or another positioning support block (202) along the length direction of the tooling.

2. The vehicle seat rail mounting hole accuracy detection tool according to claim 1, characterized in that: At least three measurement reference blocks (301) are provided on one side of the base (1), and the measurement reference blocks (301) are all located between the two ends of the base (1) or at least two measurement reference blocks (301) are respectively located at the two ends of the base (1).

3. The vehicle body seat rail mounting hole accuracy detection tool according to claim 1, characterized in that: The reference portion (3) further comprises a rubber plug (302), wherein the rubber plug (302) is inserted into the reference hole (3012), and the rubber plug (302) is used to protect the reference hole (3012) and the reference surface (3011).

4. The vehicle body seat rail mounting hole accuracy detection tool according to claim 1, characterized in that: The detection portion (2) further comprises a cushion block (203), the cushion block (203) being connected to the base (1), and the detection support block (201) and the positioning support block (202) being both mounted on the bottom surface of the cushion block (203).

5. The vehicle body seat rail mounting hole accuracy detection tool according to claim 4, characterized in that: The detection support block (201) and the positioning support block (202) are both threadedly connected and fixed to the base (1).

6. The vehicle body seat rail mounting hole accuracy detection tool according to claim 4, characterized in that: The detection portion (2) further comprises a positioning member (204) and a detection member (205); the detection support block (201) and the positioning support block (202) are respectively provided with a detection hole and a positioning hole; the positioning member (204) and the detection member (205) are respectively inserted into the positioning hole and the detection hole.

7. The vehicle body seat rail mounting hole accuracy detection tool according to claim 6, characterized in that: The detection portion (2) further includes a marking pin (206) that can be inserted into the detection hole.

8. A vehicle body seat rail mounting hole accuracy detection tool according to any one of claims 1 to 7, characterized in that: It also includes a plurality of handles (4), wherein the handles (4) are fixedly connected to the top surface of the base (1).

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